<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        #id-canvas {
            border: 1px solid lightseagreen;
        }
    </style>
</head>
<body>
<canvas id="id-canvas" width="500" height="500"></canvas>
<script src="方块运动代码整理.js"></script>
</body>
</html>
